Table for my mill

[Roadracer_Al]

Here's my take: you have high amps, and low wire speed. The high amps burn the wire quickly, and the low wire speed isn't keeping up with the burn rate. Sometimes this is bad enough to actually extinguish the arc, but usually it just pulsates. Look up the correct amperage for the thickness and materials being welded. then set the speed intentionally low, so it sputters, then slowly dial up the wire feed until it sounds just like frying bacon. It ought to be loud, continuous, and aggressive sounding. Positively sizzling.